Ok I am wanting to build up a turbo setup for my Delsol here in New Zealand. It came with the B16JDM sorta equivilent to the b16a3 that you guys get. S/P/R = Sleeves, Pistons and rods I want to know if it would be best to keep and build the B16 S/P/R or to : 1--Build the B18B I have got with S/P/R with the b18 non-Vtec head? 2--Build the B18 with S/P/R but do a LS/Vtec swap with the B16 head at the same time? ... really what I want to know is will loosing the awesome sounding VTEC really do anything to Boosted Performance ? Cheers for all replys !